Automatic flush-valve



Patented lune 20, |899.

F. E. SMITH.

AUTOMATIC FLUSH VALVE.

{Applicaton led Feb 17, 1899.)

(No Model.)

W/TNESSES n4: nume Ferns co., Pnofou'mo.. wAsMmaToN, D. c.

UNTTED STATES PATENT OFFICE.

FRANK EDwAED SMITH, oF NEW ORLEANS., LoUIsANA.

AUTOMATIC FLUSH-VALVE.

SPECIFICATION forming part of Letters Patent No. 627,357, dated J' une 20, 1899. Application filed rebrmy 17, 1899. sesam. 705,918. mamada.)

To all whom, t may concern..- I

Beit known that I, FRANK EDWARD SMITH, a citizen of the United States, residing at New Orleans, in the parish of Orleans and Stateof Louisiana, have invented' certain new and useful Improvements in Automatic Flush- Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Myinvention relates to an improvement in an automatic flush-valve, and its novelty will be fully understood from the following description and claim when taken in connection with the annexed drawings; and the objects of my invention are to provide a new and useful device for ilushing bowls of a water-closet and at the same time produce a device whereby the .valves are not subject to the wear and tear of sediment from muddy water, such as the Missouri or Mississippi river waters.` I attain these objects by thev mechanism illustrated in the accompanying drawings, in which- Figure l is a horizontal section of watercylinder on the line 1 1 of Fig. 3. Fig. 2 is an end view of water-cylinder, on a smaller scale, showing bowl attached. Fig. 3 is a vertical section ofthe water-cylinder on the 'same scale as Fig, 1, the section views on the line 3 3 of Fig. 1.

Similar numerals refer to similar parts throughout the several views.

In the drawings, 1 designates a water-cyl- `inder suit-ably attached in any position desired.

2 shows an inlet-pipe for supplying cylinder with water. 1

3 shows a flush-pipe through. which water isdischarged into bowl 17.

4 designates a valve-stem provided with rubber plug-valves 5v and 5a, which open and close port 6. Placed on stem 4 is a ange '7, as shown in Figs. 1 and 3.

8 is a leather cup-shaped washer for controlling the movement of the piston.

9 designatesan arm engaging the stem 4, said arm being fast to the rock-shaft 9, carrying the lever 10, provided with a chain 14, ,attached to the seat 15.

11 shows a spring bearing on the piston.

2 is a water-port closed and opened by valve 13. v

16 isa hinge which is attached to seat 15 and to a lug on the bowl 17.

18 represents the waste-pipe for bowl.

19 shows a valve controlling the tlow of water from the supply-pipe 20.

2l shows a base or Hoor.

The operation of my device is as follows: The seat of the closet being occupied, the chain 14 is raised and the rock-shaft 9a partly rotated, operating the arm 9 and valve-ste1n 4 forward, thus moving the valve 5 from its seat and causing the valve 5a to close the port 6. During the time when the valve 5 leaves the port until, the time the valve 5a closes the same a ow of Water will pass through the port 6 from the inlet-pipe. and pass through the port and out through the outlet-pipe into the bowl ot' the closet. This small ow of water wets the bowl and prevents the adherence ot' matter to its sides. When the pressure is removed from the seat, the valve 52l is pushed back from 4its seat by the action of the spring 11, and the water tlows through the port 6 and into the bowl of the closet until the port is closed by the valve 5. volume of water to iiush the bowl is regulated by the speed with which the valve 5 moves to close the port 6. This speed is regulated by means of the cup-shaped piston 8. As soon as the seat is pressed down and the valvestem moved to the right, Fig. 3, water passes Athrough the passage l2 into that part of the chamber 1 inclosed between the end of the cylinder and the cup-shaped piston. When the pressure is removed from the seat, the

action of the spring 11 is controlled by the watercushion formed behind the piston. Thus it will be seen that if the valve 13 were shut the liow of water to Hush the bowl of the closet could be made constant.

An advantage of my invention is its ecod nomicalV construction andthe ease by which it may be operated and repaired should it be necessary. It dispenses with complicated and unsightly tanks, piping, and weights, the seat being one of the levers used and that being of the simplest form. vIt is impossible for sand or sediment to accumulate in any part of the valve, and the result is attained without delicate or complex mechanism of any The kind and with no stu lling-boxes standing under pressure, the valve being so small as to be completely hidden by the bowl and seat. This valve feeds a direct pressure which is always greater than any Ilush attained bya Hush-tank, and consequently uses less water. The volu me pressure and length of time ilush discharges is under perfect control on the outside. This closet can be installed with a small amount of labor and with no damage t0 walls. It is simple, durable, and economical.

Having thus described my invention and the manner in which the same is or may be carried into operation, I would say in conclu sion that I do not limit myself to the precise details shown in illustration, as the same may be varied to some extent; but

That I claim, and desire to secure by Letters Patent, is

The herein-described 1i ush-valve consisting of a cylindrical chamber, provided with inlet and outlet pipes, a valve-seat formed integral with and dividing said ehamberinto two compartments, a valve-stein passing through the port of said valve-seat and provided with plug-valves operating in unison to open 0r close said port, a fiange mounted on one end of said valve-stem, a spring within said chamber pressingagainst said flange, a cup-shaped piston mounted on the other end of said valvestem, awater-duct openinginto said chamber behind said piston, and a Valve on the outside of said chamber for controlling the passage of water through said duet; in combination with a eloset-bow1, a seat hinged to said bowl and provided with a chain connected toa 1ever attached to said valve-stem for operating same, substantially as described.

In testimony whereof I aflx my signature iu presence of two witnesses.

FRANK EDWARD SMITH.

Witnesses:

W. MORGAN GURLEY, Ene. A. GAVIN. 

